Bearing mask structure



Nov. 2s,'1944. E, DUGA 2,363,660

BEARiNG MASK STRUCTURE Filed April 8, 1942 FIGJ.

V INVENTOR. JAMES EDWARD DUGGAN ATTORNEYS- NITED S A effectively cover and protect atone time all Patented Nov. 28 1944 3' has BEARING MASK sriwocruaa JamesEdwardDuggan, Detroit, Mich. Application April s, 1942 Serial miracles 1101i sa es).

M 13 Claims.

This invention relates generally to, devices that are used during painting or; plating operations to protect articles or portionsthereoffrom paint applied" to adjacent articles or portions and re-- 'fersmore particularly to paint masks fortubular elements'such as tubular or sleeve typebearings and the like.

One of .theessentialobjects of the invention is to provide a mask capable of protecting the bearing while it is assembled with the article or. portion to be painted or plated and that'inay accomplish this without interfering withor obstructing the painting or plating operation.

Another object is toprovide a maskthat will exposed portionsincluding the bearing, surface of. a. sleeve type bearing and will thereby prevent any paint or plating substance applied to the article or portion thereof with which the bearing is assembledfron reaching the bearing.

slightly greatr than the length so that opposite ends of the bearings project of the holes l slightly beyond opposite ends of the holes.

Each mask 0 is preferably formed of resilient 'rnaterial such as rubber or rubber composition and hasa substantially cylindrical body 12 and a reduced substantially cylindrical endwise extension l3. 1 The body I2 is provided at spaced points longitudinally thereof with annular flanges M and '5 The and has an axialiyflextending socket l6. flange i4 is at one end of the body and has an undercutinner face I'l while the flange l5 isat theuinner end of thej extension l3 and also has Another object is to provide a mask that may be easilyand quickly applied to the bearing; that i will grip the bearing tightly .while applied an-undercut inner face I8. Preferablythis flange l5 has a frusto conical portionll9 that tapers from the outer side thereof to andis integral with the inner end j iof the extension 13. The socket 16 extends from a; point adjacent the inner, end oitheextension: l3 to and opens through the flanged end 2010f the body. The extension i3 is preferably solid and constitutes a finger piece for thebody l2.

thereto, and that may be easily and quickly re- 1 moved from the bearing without marring the paint or plating. applied to the article oriportion thereof with which the bearing is assembled.

Another object is to provide a mask that is simple in construction and economical to manutacture. K

Other objects, advantages and. novel details oi'lconstruction Of this inventionv will be made more apparent as this description proceeds, especially when. considered in connection with the accompanyingdrawing, wherein: e

Figure 1 is a plan. view of a hasp, showin parts. thereof broken away and in section and showingmasks embodying my invention applied to sleevetype bearings within arm portions thehasp; 1

Figure 2 is an end view. of the structure shown in Figure 1.; p

Figure 3 is, a perspective viewor a, mask embodying my invention;

Referring now" to the drawing, A is a hasp of a latch for an electric starter housing of an 'In. use, theiextension l3 and frus-to-conical portition t9 cooperate with each otherto provide a Pilot for the body l2 to facilitate its insertion within one of the bearings 13. The axial socket [6, permits sufficient contraction of the body. [2 i i to enable the frusto conicalportion l9 and flange I5 tube inserted into and moved. in either direction through the bearing Initially, the xtensionflltandfrusto-conical portion I9 are inserted the ordernamed into one end of the bearingB untilthe large end of the frusto-co-ni calportion l9 abuts the adjacent end of the bear- .ing. f At this stage the extension I3 projects bearing. During this stage the body [2, flange through and'is' accessible beyond the other .end

of the bearing. Then the extension l3is pulled endwise by handin an outward direction relative to the hearing so that the frusto-conical portion lfl and flange l5 will be drawn through the IE and frusto-conical portion I!) will be stretched Consequentlywhen the extension !3 is released afterthe flange [5 has been pulled through the airplane, B are tubularorfsleeve type bearings extending through aligned holes loin substantiallyparallel arms H of said hasp, andC are .masks embodying. my invention and extending through and protecting the bearings B from paint. or plating material applied to'the hasp A.

As shown, the length of the bearings B. is

. and contracted so as to pass through the bearing. Figure 4 isanother viewolithe mask,wlthparts The n fl nge M will abut the adjacent endof broken away and in section.

the bearing just before the flange l5is drawn beyend theo-ther end of the bearing as aforesaid.

bearing,'the resiliencyof the stretched body will cause it to shorten and expand into snug engageinent with the inner walls of the bearing and willcause the undercut faces ll andyll8 of the flanges l4 and l 5 to embrace and fittightly over the ends of the bearing B. When in this position, the flanges I4 and I5 not only cover the ends, of the bearing but abut the adjacent faces of the arm I l containing said bearing. Consequently all portions of the bearing are covered and protected by the mask from paint or plating material subsequently applied to the hasp A.

mask that may be easily and quickly applied to and removed from the bearing without marring it or the hasp or other article with which the bearing may be assembled and that will serve effectively and efliciently to protectthe bearing and provided at longitudinally spaced points thereof with lateral flanges adapted to overlie opposite ends of the bearing, said socket beingsmall in comparison with the cross-section of said element and means atone end of said element operable as a finger piece to actuate the element and flanges relative to said bearing.

2. A one piece resilient maskingdevice for covering the interior and end portions of asleeve type bearing so that said portions will be shielded from paint or plating material applied to a holder for said bearing, comprising a cylindrical elementhaving a socket in one end thereof, said element being adapted to substantially fill the interior of; the bearing and provided at longitudinally spaced points thereof with lateral flanges adapted to overlie opposite ends of the bearing, said socket being small in comparison with the cross section of said element and means at one end of said element operable initially as' a pilot for the cylindrical element to facilitate its insertion within the bearing and operable thereafter as a finger piece to move the element lengthwise within the bearmg.

.3. A masking devicefor protecting a tubular I x portion of an assembly from paint or plating material applied to an adjacent portion of the assembly. comprising a resilient member having an elongated body having a socket in one end. thereof, said body being adapted to substantially fill the interior of the tubular portion, flanges at longitudinally spaced points of the elongated body for covering opposite ends of said tubular portion, said socket being small in comparison with a sembly, having an elongated body having a socket in one end thereof, said body being adapted -to substantially fill the interior of the tubular portion, flanges at longitudinally spaced points of the elongated body for covering opposite ends of said tubular portion, said socket being small in comparison with the cross section of said body and means at one end of the body operable as a 5 finger piece to actuate the body and flanges relative to said tubular portion.

5. An elongated mask for a tubular element, comprising an elongated body having a socket in one end thereof, said body being formed of resilient material and adapted to be inserted into and moved lengthwise within the tubular element,

flanges at spaced points longitudinally of the I ,,.body for gripping opposite, ends ofsaid element, said socket being small in comparison with the xcross section of said body, a pilot for the body on one of said flanges, and an endwise extension on the pilot operable as a finger piece for moving the pilot, flange adjacent thereto, and body lengthwise within the tubular element. 6. A one piece mask for a tubular element, comprising an elongated body having a cylindrical portion having a socket in one end thereof, said element beingadapted to be inserted into and moved lengthwise within the tubular element, said socket being small in comparison with the cross section of said element flanges at longitudinally spaced points of the cylindrical portion for overlying opposite ends of the tubular element, a portion on one of said flanges for piloting the cylindrical portion into said element, and a portion projecting endwise from the pilotin portion and operable as a finger piece to move the cylindrical portion lengthwise. within the tubular element. 7 p 7. Anne piece mask for a tubular element, comprising a bodyhaving a socket in one endthereof, said body being adapted to substantially plug the interiorof the tubular element, said socket being small in comparison with the'cross section of said element flange portions at longitudinally spaced points ofthe body for embracing opposite ends of said element, and an endwise extension on one of saidflanges operable as a finger piece for movl ing the body lengthwise within the tubular .element. V

8. A one piece mask for a tubular. element comprising an elongated body of resilient'material adapted to substantially fill the tubular element and provided at spaced points longitudinally thereof with lateral flanges having undercut faces for embracing opposite ends of said tubular element, said body being contractible upon being moved lengthwise within the tubular element to permit one of said flanges to be drawn through said element, and means at oneendof the body operable as a finger piece to move the. body lengthwise within thetubular element. 9. Means for protecting the interior surface of a tubular member from paint or plating mate,- rial applied to other portions of said member or to a holder for said member, comprising a mask having an elongated body having a socket in, one

end thereof, said body being adapted to be insorted into the interior of the tubular member to substantially fillthe same, said body being provided at longitudinally spaced points thereof with lateral flanges for abutting engagement ,with opposite ends of the tubular member, aid body being formed of resilient material and said .70 socket being small in comparison with the cross section of the body wherebythe body is con.- tractible to permit one of said flanges to be insertedinto said tubular membe 1 I Q:

10. Means for protecting the interior surface of a tubular member from paint or plating material applied to other portions of said member or to a holder for said member, comprising a mask having an elongated body having a socketin one end thereof, said body being adapted to be in serted into the interior of the tubular member to substantially fill the same, said body being proyided at longitudinally spaced points thereof with lateralflanges for abutting engagement with opposite ends of the tubular member, said body being formed of resilient material and. said socket being small in comparison with thecross section of the body whereby the body is contractible to permit one of said flanges to be insertedinto said sorted into the interior of the tubular member to end thereof, said body being adapted to be inserted into the interior of the tubular member to 1 substantially fill the same, said body being provided at longitudinally spaced points thereof with lateral flanges for abutting engagement with opposite ends of the tubular member, said socket being small in comparison with the cross section of the body whereby the body is contractible to permit one of said flanges to be inserted into said tubular member, said body being provided at one end adjacent the socket with an endwise extension constituting both a pilot for the body to facilitate its insertion within the tubular member. and a finger piece by which the flange aforesaid may be pulled through the tubular member after being inserted into thesame. v

13. Means for protecting the interior surface of a tubular member from paint or plating material applied to other portions of said member or to a holder for said member, comprising a mask having an elongated body having a socket in one substantially fill the same, said body being proyided at longitudinally spaced points thereof with lateral flanges for abutting engagement with opposite ends of the tubular member, said socket being small in comparison with the cross section of the body whereby the body is contractible to permit one of said flanges to be inserted tubular member.

12. Means for protectingthe interior surface and opposite end portions of a tubular member into said end thereof, said body being adapted to be inserted into the interior, of the tubular member, said body being provided at spaced points longitudinally thereof with lateral flanges for abutting opposite ends of said tubular member, said body being provided at one end with an endwise extensionby which the body may be actuated relative to said tubular member, said body being from paint or plating material applied to a holder for said member, comprising a mask having a stretchable elongated body having a socket in one formedof resilient material and said socket being small in comparisonwith the cross section of the body and being axially disposed whereby the,

body is contractible when inserted into said tubular member to enable one of said flanges to be inserted into and pulled through the tubular member by the endwise extension.

JAMES EDWARD DUGGAN. 

